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dsp73
3 years ago
12

The diagonals of quadrilateral ABCD

Mathematics
1 answer:
kap26 [50]3 years ago
6 0

Answer:

Step-by-step explanation:

16 ae =x

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The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y
Cerrena [4.2K]

We have been given that the inverse variation y=\frac{3\times 10^8}{x} shows the relationship between wavelength in meters, x, and frequency, y. We are asked to find the wavelength for radio waves with frequency 3\times 10^9.

To find the required wavelength, we substitute y=3\times 10^9 in our given equation and solve for x as:

3\times 10^9=\frac{3\times 10^8}{x}

x=\frac{3\times 10^8}{3\times 10^9}

We can see that both numerator and denominator has 3, so we can cancel it out.

x=\frac{1\times 10^8}{1\times 10^9}

Using quotient rule of exponents \frac{a^m}{a^n}=a^{m-n}, we will get:

x=1\times 10^{8-9}

x=1\times 10^{-1}

Therefore, the wavelength for radio waves would be 1\times 10^{-1} meters and option B is the correct choice.

3 0
3 years ago
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Solve the system of equations by graphing:<br> y= 2x +8<br> -x+y=0
sdas [7]

Answer:

Slope = 4.000/2.000 = 2.000

Slope = 2.000/2.000 = 1.000

Step-by-step explanation:

the first answer is for the first problem and the second answer is for the second problem. Hoped it helped i tried my best.

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3 years ago
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A true-false test consists of 50 questions. how many does a student have to get right to convince you that he is not merely gues
umka2103 [35]
Hmmm. 20 or 30 so the teacher will count the rest,if a student guessed, wrong or right
7 0
3 years ago
Osvoldo has a goal of getting at least 30%, percent of his grams of carbohydrates each day from whole grains.
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To answer this you need to figure out what 30% of the total number of carbs need to be whole-grain. Multiply 0.3 times 220 to get 66 grams. He did not meet his goal. Because he only ate 5 g, this is 61 less than he needs to meet his goal.
4 0
3 years ago
Can someone help me please
vodomira [7]

Answer:

b

Step-by-step explanation:

hope this helps can i get brainliest

8 0
2 years ago
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